596 CHENOPODIACE^G atriplbx 



and leafy: leaves rather thick, deltoid or triangular- ovate or subrhombic, 

 often aubhastate %-2 inches long, acute or obtuse, opposite and petioled or 

 the upper sessile and alternate: flowers in capitate axillary clusters or the 

 staminate in short dense spikes : fruiting bracts shortly pedicelled, united 

 nearly or quite to the top, more or less acutely and deeply toothed, the 

 sides usually tubercled or crested. Dry or saline soil, eastern Oregon to 

 California and Nebraska. 



§ 3 More or less shrubby perennials, closely appressed-scurfy, 

 mostly dioecious. Leaves mostly alternate. Radicle usually 

 superior. 



A. Nuttallii Watson Proc. Am- Acad, ix, 116. Stems erect, shrubby 

 1-3 feet high branching mostly from the base, bark nearly white: 

 leaves narrowly oblong or oblanceolate 6-24 lines long, narrowed at base, 

 sessile, entire : flowers in terminal spikes and capitate clustered in the ax- 

 ils, often strictly dioecious : calyx 5-cleft : bracts ovate, united to above 

 the middle, mostly sessile, becoming suborbicular, 1-2 lines long, not 

 compressed, the margins and summit irregularly gash-toothed and the sides 

 usually muricate or toothed. In dry saline soil, eastern Oregon to Brit. 

 Columbia aud Nebraska. 



A. confertifolia Watson 1. c. 119. A much branched spinescent shrub 

 1-6 feet high, hoary-scurfy: leaves alternate, ovate or obovate to lanceolate, 

 2-8 lines long, obtuse or acutish, cuneate at base, sessile or short-petioled, 

 entire : flowers in small axillary clusters : calyx 5-parted : bracts thick and 

 scurfy, about 6 lines broad, suborbicular, with free entire margins, not 

 veined nor appendaged, sessile, united at the cuneate base around the seed 

 and broadly margined above: seed a line broad, filling the cavity. On 

 alkaline plains, eastern Oregon and Idaho to New Mexico. 



7 EUROTIA Adans. Fam. PL ii. 260. (1763.) 



Low pubescent undershrubs, with alternate entire leaves and 

 small clusters of axillary and subspicate flowers. Flowers dioeci- 

 ous or monoecious. Staminate flowers bractless, the calyx 4-parted 

 with unappendaged lobes and as many stamens: filaments slen- 

 der, exserted. Pistillate flowers without calyx, bibracteate. 

 Bracts sessile, somewhat obcompressed, united to the apex, becom- 

 ing enlarged and rather rigidly membranaceous, not winged, 2- 

 horned at the apex, the sides densely covered with long spreading 

 tufted hairs. Ovary oblong-ovate sessile, hairy, firmly membran- 

 aceous. Styles 2, exserted. Seed vertical, obovate, the testa sim- 

 ple. Cotyledons broad and green : radicle inferior. 



E. lanata Moq. Enum. Chenop. 81. White-tomentose throughout 

 with stellate hairs: stems erect, with strict ascending leafy branches, 6-30 

 inches high: leaves linear to narrowly lanceolate, with revolute margins, 

 6-18 lines long, obtuse: calyx-lobe? ovate, acute, hairy: bracts lanceolate, 

 2-3 lines long in fruit, with 2 short horns at the apex, penicillate with 4 

 dense spreading tufts of silvery white hairs : utricle loose, the pericarp 

 readily separating from the large seed. On dry ridges, eastern Brit. Co- 

 lumbia to California and Nebraska. 



8 EREMOSEMIUM Greene Pitt, iv, 225. 

 GRAYIA H. &A. 



Subspinescent undershrubs with alternate entire leaves: and 

 small flowers in axillary clusters or terminal spikes. Flowers 



